Improvement in stench-traps for use in sinks



s. BUHRER. v STENCH-TRAPS FOR USE IN SINKS; 846.

No. 194,329. wanted Au 21,1877.

ATTORNEYS N-FEFERSI FHOTO-LITHOGRAPHER. WfSilMGTON- D. Q

UNITED STATES PATENT OFFICE.

STEPHEN BUHRER, OF CLEVELAND, OHIO.

IMPROVEMENT IN STENCH-TRAPS FOR USE IN SINKS, 8w.

Specification forming part of Letters Patent No- 194329, dated August21, 1877; application filed July 30, 1877.

To all whom it may concern Be it known that I, STEPHEN BUHRER, ofCleveland, in the county of Ouyahoga and State of Ohio, have inventedcertain new and useful Improvements in stench-Traps for use in Sinks,&c.; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it pertains to make and use it, reference being hadto the accompanying drawings, which form part of this specification.

My invention relates to stench-traps for use in sin ks, water-closets,850.

In the drawing, Figure 1 is a view of a flexible tubular valve accordingto my invention. Fig. 2 is an isometric view of the casing containingthe elastic tubular valve; Fig. 3, a view of my entire device, with theparts adjusted and arranged for operation.

My invention consists in the following parts and combinations, ashereinafter specified and claimed, wherein A is a suitable thimble,provided with a neck and flange, upon which is fitted the tubular valveB. G is the casing for containing the valve B. This casing is soconstructed as that it shall provide an inclined rest or seat to thetubular valve B, and herein consists an important feature of myinvention, to wit, the valve B resting upon an inclined surface. Thedegree of this inclination is a matter to which I do not limit myself,and this incline may bestraight, curved, or broken by angles 0, asdesired.

The surface presented upon which the valve B is to rest, although,preferably, made flat, may be, if desired, made convex or otherwise.

The material of which the valve is constructed may be rubber, silk,membrane, or any suitable flexible material or fabric.

When placed in position, as shown in Fig. 3, it will be observed that anunobstructed passage is provided in the direction of the arrow to anysubstance passing in that direction but when said substance has passedthe walls of the valve B will immediately come in close contacttogether, effectually stopping and preventing any escape of gas or othermatter in a direction opposite to that of the arrow just referred to.Thus it will be seen that all stench is effectually prevented fromescaping into the apartment, inasmuch as a tight joint should be madebetween the thimble A and easing.

What I claim isl. A flexible tubular valve, B, adapted, by suitablemeans, to rest at an angle to the perpendicular, substantially as andfor the purposes described.

2. The flexible tubular valve B, inclosed in V a suitable casing, (J,placed at an angle to the perpendicular, substantially as and for thepurposes described.

3. The casing (3, provided with a flat floor or surface, for theaccommodation of the flexible tubular valve B, substantially as and forthe purposes described. 1 p

4. The casing O, placed at angle to the perpendicular, the floor ofwhich is formed on a curve, or provided with the angle 0, substantiallyas and for the purposes described.

In testimony whereof I have signed my,

name to this specification in the presence of two subscribing witnesses.

Fnlmcrs TOUMEY, 7 WILLIAM E. DONNELLY.

